Dell PowerVault 50F Installation And Troubleshooting Manual

Also see for PowerVault 50F: Connection guide User guide Install guide Installation and troubleshooting guide User guide

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Dell PowerVault 50F Installation And Troubleshooting Manual Manual pdf 93 page image

support.dell.com PowerVault 56F 16-Port Fibre Channel Switch Commands 4-37The iodReset command turns off the in-order delivery option. This command allowsout-of-order delivery of frames during fabric topology changes.This is the default behavior and allows fast rerouting after a fabric topology change.The iodSet command ensures that frames are not delivered out-of-order, even duringfabric topology changes. In a stable fabric, frames are always delivered in order, evenwhen the traffic between switches is shared among multiple paths. However, whensome topology change occurs in the fabric, for instance, a link goes down, traffic isrerouted around the failure. In general, there is no guarantee in this case that someframe, queued behind a congested link, will not be delivered after a frame that hasbeen transmitted later, but is now taking the new path.This command should be used with care, because it causes a delay in the establish-ment of a new path when a topology change occurs. Use this command only if thereare devices connected to the fabric that do not tolerate occasional out-of-order deliv-ery of frames.The default behavior is for the in-order delivery option to be off.nLsuIn The number of Link State Updates received from the neighborswitchnLsaIn The number of Link State Acknowledges received from the neigh-bor switchattHloOut The number of attempted transmissions of Hello frames to theneighbor switchnHloOut The number of Hello frames transmitted to the neighbor switchattLsuOut The number of attempted transmissions of Link State Updates tothe neighbor switchnLsuOut The number of Link State Updates transmitted to the neighborswitchattLsaOut The number of attempted transmissions of Link State Acknowl-edges to the neighbor switchnLsaOut The number of Link State Acknowledges transmitted to the neigh-bor switchother The other fields represent internal FSPF variables( 5 ' %